Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September is the warmest month, with an average high-temperature of 28.8°C (83.8°F) and an average low-temperature of 28°C (82.4°F).Heat index
In September, the average heat index is computed to be a hot 33°C (91.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, pregnancy, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in September is 76%.Rainfall
In Ashton, Saint Vincent and the Grenadines, during 21.4 rainfall days, 81mm (3.19") of precipitation is typically accumulated. Throughout the year, there are 238.6 rainfall days, and 627mm (24.69") of precipitation is accumulated.Sea temperature
September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Ashton.Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
Daylight
In Ashton, the average length of the day in September is 12h and 12min.On the first day of September in Ashton, Saint Vincent and the Grenadines, sunrise is at 05:54 and sunset at 18:16. On the last day of the month, sunrise is at 05:54 and sunset at 17:56 AST.
Sunshine
The average sunshine in September in Ashton is 10h.UV index
The months with the highest UV index in Ashton are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Ashton. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
FAQ
What is the warmest month in Ashton?
What is the temperature in September in Ashton?
What is the average humidity in September in Ashton?
How many days does it rain in September in Ashton?
When is the sea warmest in Ashton?
What is the sea water temperature in September in Ashton?
What is the average length of the day in September in Ashton?
What time are sunrise and sunset in September in Ashton?
How long on average sun shines in September in Ashton?
What are the months with the highest UV index in Ashton?
What are the months with the lowest UV index in Ashton?
How high is the UV index in September in Ashton?
Average temperature in September
Ashton, Saint Vincent and the Grenadines
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is February (26.5°C).
- Average low temperature in September: 28°C
The month with the highest average low temperature is September (28°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).
Average pressure in September
Ashton, Saint Vincent and the Grenadines
- Average pressure in September: 1012.2mbar
The month with the highest atmospheric pressure is June (1014.5mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in September
Ashton, Saint Vincent and the Grenadines
- Average wind speed in September: 20.6km/h
The windiest month (with the highest average wind speed) is February (29.3km/h).
The calmest month (with the lowest average wind speed) is September (20.6km/h).
Average humidity in September
Ashton, Saint Vincent and the Grenadines
- Average humidity in September: 76%
The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is February (75%).
Average rainfall in September
Ashton, Saint Vincent and the Grenadines
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is August (94mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in September
Ashton, Saint Vincent and the Grenadines
- Average rainfall days in September: 21.4 days
The month with the highest number of rainy days is August (24.3 days).
The month with the least rainy days is February (14.8 days).
Average sea temperature in September
Ashton, Saint Vincent and the Grenadines
- Average sea temperature in September: 29°C
The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March, April and December (27°C).
Average daylight in September /
Average sunshine in September
Ashton, Saint Vincent and the Grenadines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 52min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Ashton, Saint Vincent and the Grenadines
- Average sunshine days in September: 5.4 days
The months with the most sunshine days are February and March (9.3 days).
The month with the least sunshine days is July (1.7 days).
Average UV index in September
Ashton, Saint Vincent and the Grenadines
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Ashton, Saint Vincent and the Grenadines
- Average cloud cover in September: 38
The month with the most cloud cover is July (Cloud cover 46).
The months with the least cloud cover are January and February (Cloud cover 37).
Average visibility in September
Ashton, Saint Vincent and the Grenadines
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
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